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Preparation method of flower-like molybdenum disulfide and UiO-66 combined photocatalyst

A molybdenum disulfide and photocatalyst technology, applied in the field of composite material science, can solve the problems of complex raw materials, poor environmental friendliness, etc., and achieve the effects of simple operation, low cost, and easy availability of raw materials

Active Publication Date: 2020-03-27
NORTHWEST NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above materials have complex raw materials and poor environmental friendliness in the preparation process

Method used

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  • Preparation method of flower-like molybdenum disulfide and UiO-66 combined photocatalyst
  • Preparation method of flower-like molybdenum disulfide and UiO-66 combined photocatalyst
  • Preparation method of flower-like molybdenum disulfide and UiO-66 combined photocatalyst

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Example 1 A preparation method of flower-shaped molybdenum disulfide combined with UiO-66 photocatalyst:

[0045] Firstly, spherical UiO-66 nanoparticles were prepared by solvothermal method with zirconium salt and organic ligand as precursor and polar solvent as dispersant. The specific process is as follows:

[0046] (1) Add 0.0500 gZrCl 4 Add it into 25 mL of N,N'-dimethylformamide, ultrasonically dissolve for 30 minutes to fully dissolve the white solid powder, then add 0.0250 g of terephthalic acid, and then ultrasonically dissolve and stir for 20 minutes to form a transparent and uniform mixed solution ;

[0047] (2) The mixed solution was heated at 110°C for 22 hours, cooled to room temperature, and centrifuged at 6500 rpm for 5 minutes to obtain a white solid product;

[0048] (3) The white solid product was washed twice with N,N'-dimethylformamide, and then dried in a vacuum oven at 50°C to constant weight to obtain the product.

[0049] Then, under stirrin...

Embodiment 2

[0052] Example 2 A preparation method of flower-shaped molybdenum disulfide combined with UiO-66 photocatalyst:

[0053] Firstly, spherical UiO-66 nanoparticles were prepared by solvothermal method with zirconium salt and organic ligand as precursor and polar solvent as dispersant. The specific process is as follows:

[0054] (1) Add 0.0375 g ZrOCl 2 ·8H 2 O was added to 30 mL of distilled water, ultrasonically dissolved for 30 min to fully dissolve the white solid powder, then 0.0369 g of 2-aminoterephthalic acid was added, and then ultrasonically dissolved and stirred for 40 min to form a transparent and uniform mixed solution;

[0055] (2) The mixed solution was heated at 160°C for 36 hours, cooled to room temperature, and centrifuged at 8500 rpm for 10 minutes to obtain a white solid product;

[0056] (3) The white solid product was washed with distilled water for 6 times, and then dried in a vacuum oven at 90°C to constant weight to obtain the final product.

[0057] ...

Embodiment 3

[0060] Example 3 A preparation method of flower-shaped molybdenum disulfide combined with UiO-66 photocatalyst:

[0061] Firstly, spherical UiO-66 nanoparticles were prepared by solvothermal method with zirconium salt and organic ligand as precursor and polar solvent as dispersant. The specific process is as follows:

[0062] (1) Add 0.0450 g ZrCl 4 Add it into 27 mL of N,N'-dimethylformamide, ultrasonically dissolve for 30 minutes to fully dissolve the white solid powder, then add 0.0675 g of terephthalic acid, and then ultrasonically dissolve and stir for 35 minutes to form a transparent and uniform mixed solution ;

[0063] (2) The mixed solution was heated at 120°C for 25 hours, cooled to room temperature, and centrifuged at 6500 rpm for 5 minutes to obtain a white solid product;

[0064] (3) The white solid product was washed 4 times with N,N'-dimethylformamide, and then dried in a vacuum oven at 60°C to constant weight to obtain the product.

[0065] Then, under stir...

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Abstract

The invention relates to a preparation method of a flower-like molybdenum disulfide and UiO-66 combined photocatalyst, wherein the method comprises the steps: by using zircon salt and an organic ligand as precursors and a polar solvent as a dispersing agent, preparing a white solid product, namely spherical UiO-66 nanoparticles, by a solvothermal method; then dispersing the spherical UiO-66 nanoparticles into distilled water to form a milk white solution; sequentially adding a molybdenum source and a sulfur source into the milk white solution, ultrasonically dissolving and stirring for 30 min,transferring into an autoclave with a polytetrafluoroethylene liner, heating at constant temperature, cooling to room temperature, and centrifugally separating to obtain a grey black product; and finally, washing the grey black product with absolute ethyl alcohol, and performing vacuum drying to constant weight to obtain the flower-like molybdenum disulfide and UiO-66 combined photocatalyst. Themethod is simple to operate, the raw materials are easy to obtain, the cost is low, and the obtained photocatalyst has excellent photocatalytic degradation performance.

Description

technical field [0001] The invention relates to the field of composite material science and the technical field of medical wastewater treatment, in particular to a preparation method of flower-shaped molybdenum disulfide combined with UiO-66 photocatalyst. Background technique [0002] Antibiotics are considered emerging pollutants. In recent decades, with the rapid development of animal husbandry and health care industries, water pollution caused by the abuse of antibiotics has gradually attracted widespread attention, especially fluoroquinolones, sulfonamides, tetracyclines and macrolides. become an increasingly important issue. Among these antibiotics, fluoroquinolones are gradually being used worldwide for the treatment of bacterial infections in humans and animals due to their broad antibacterial spectrum, high bioavailability, and long half-life. Although the concentrations of antibiotics detected in aquatic environments are low, they are considered substances that p...

Claims

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Application Information

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IPC IPC(8): B01J31/22B01J35/02B01J35/10B01J27/051C02F1/30C02F101/38
CPCB01J31/1691B01J31/2239B01J31/2243B01J27/051C02F1/30B01J2531/48C02F2101/38C02F2305/10C02F2103/003B01J35/00B01J35/30B01J35/61B01J35/39
Inventor 何玉凤高娣戴锋利闫海彦王荣民
Owner NORTHWEST NORMAL UNIVERSITY
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